640411624

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{43201}}^1$

素因数の和:43333

約数の個数: 32

約数和(自身を含む): 1283099400

約数和(自身を除く): 642687776

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1853, 3706, 7412, 14824, 43201, 86402, 172804, 345608, 734417, 1468834, 2937668, 4708909, 5875336, 9417818, 18835636, 37671272, 80051453, 160102906, 320205812, 640411624]

約数ペア:

[(1, 640411624), (2, 320205812), (4, 160102906), (8, 80051453), (17, 37671272), (34, 18835636), (68, 9417818), (109, 5875336), (136, 4708909), (218, 2937668), (436, 1468834), (872, 734417), (1853, 345608), (3706, 172804), (7412, 86402), (14824, 43201)]